# -*- coding: utf-8 -*-

#
# peerscape.http.controllers.revoke
#
# Copyright 2008 Helsinki Institute for Information Technology
# and the authors.
#
# Authors:
#       Konrad Markus <konrad.markus@hiit.fi>
#

# Permission is hereby granted, free of charge, to any person
# obtaining a copy of this software and associated documentation files
# (the "Software"), to deal in the Software without restriction,
# including without limitation the rights to use, copy, modify, merge,
# publish, distribute, sublicense, and/or sell copies of the Software,
# and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be
# included in all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
# CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
# TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
# SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

from webob import Response
from webob.exc import HTTPBadRequest, HTTPForbidden, HTTPNotFound, HTTPOk

from peerscape.lib import json
from peerscape.http.controllers import BaseController

class Revoke(BaseController):
    def index(self, req):
        db = req.environ['peerscape.db']
        iid = req.urlvars.get('peerscape.hexlabel')

        if not iid:
            return HTTPBadRequest()

        who = req.POST.get('who')
        pattern = req.POST.get('pattern')
    
        if not who or not pattern:
            return HTTPBadRequest()

        # get the value
        try:
            db.clear_signing_policy(str(iid), str(who), str(pattern))
        except:
            return HTTPForbidden()

        return HTTPOk()
